Class getEnclosingMethod() method in Java with Examples

Last Updated : 28 Nov, 2019

The getEnclosingMethod() method of java.lang.Class class is used to get the enclosing methods of this class. The method returns the enclosing methods of this class if this class is a local class or anonymous class declared in that method. Else this method returns null.

Syntax:

public Method getEnclosingMethod()

Parameter: This method does not accept any paramter.

Return Value: This method returns the enclosing methods of this class if this class is a local class or anonymous class declared in that method. Else this method returns null.

Exception This method throws SecurityException if a security manager is present and the security conditions are not met.

Below programs demonstrate the getEnclosingMethod() method.

Example 1:

// Java program to demonstrate getEnclosingMethod() method
  
import java.util.*;
  
public class Test {
    public static void main(String[] args)
        throws ClassNotFoundException
    {
  
        // returns the Class object for this class
        Class myClass = Class.forName("Test");
  
        System.out.println("Class represented by myClass: "
                           + myClass.toString());
  
        // Get the enclosing methods of myClass
        // using getEnclosingMethod() method
        System.out.println("EnclosingMethod of myClass: "
                           + myClass.getEnclosingMethod());
    }
}

Output:

Class represented by myClass: class Test
EnclosingMethod of myClass: null

Example 2:

// Java program to demonstrate getEnclosingMethod() method
  
import java.util.*;
  
class Main {
  
    public Object obj;
  
    public Object func()
    {
        class Arr {
        };
        return new Arr();
    }
  
    public static void main(String[] args)
        throws ClassNotFoundException
    {
        Main t = new Main();
  
        // returns the Class object
        Class myClass = t.func().getClass();
  
        // Get the enclosing constructors of myClass
        // using getEnclosingConstructor() constructor
        System.out.println("getEnclosingMethod of myClass: "
                           + myClass.getEnclosingMethod());
    }
}

Output:

EnclosingConstructor of myClass: public java.lang.Object Main.func()

Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#getEnclosingMethod–

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